| Autor: |
Sergey V. Kutsaev, Ronald Agustsson, Salime Boucher, Richard Fischer, Alex Murokh, Brahim Mustapha, Alireza Nassiri, Peter N. Ostroumov, Alexander Plastun, Evgeny Savin, Alexander Yu. Smirnov |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Physical Review Accelerators and Beams, Vol 20, Iss 12, p 120401 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2469-9888 |
| DOI: |
10.1103/PhysRevAccelBeams.20.120401 |
| Popis: |
The development of high-gradient accelerating structures for low-β particles is the key for compact hadron linear accelerators. A particular example of such a machine is a hadron therapy linac, which is a promising alternative to cyclic machines, traditionally used for cancer treatment. Currently, the practical utilization of linear accelerators in radiation therapy is limited by the requirement to be under 50 m in length. A usable device for cancer therapy should produce 200–250 MeV protons and/or 400–450 MeV/u carbon ions, which sets the requirement of having 35 MV/m average “real-estate gradient” or gradient per unit of actual accelerator length, including different accelerating sections, focusing elements and beam transport lines, and at least 50 MV/m accelerating gradients in the high-energy section of the linac. Such high accelerating gradients for ion linacs have recently become feasible for operations at S-band frequencies. However, the reasonable application of traditional S-band structures is practically limited to β=v/c>0.4. However, the simulations show that for lower phase velocities, these structures have either high surface fields (>200 MV/m) or low shunt impedances ( |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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